Improvement in sash-fastener



ttnim'l gime f geteilt WILLIAM EDSON, OF BOSTON, MASSACHUSETTS.

Lettersl Pate-nt No. 84,098,k dated November 17, 1868.

The Schedule referred to in these Letters Patent and making part of the same.

To all whom 'it may douce/rn Beit known that I, WILLIAM EDSON, of Boston, in the county of Suffolk, and lStante of Massachusetts, have invented certain new :ind useful Improvements in Sash- Fests; and I do hereby declare that thefollowing is enfull and exact description thereof, reference being had to the eeoompenying drawings, and to the letters of reference marked thereon.

The nature of my invention consists in making n window fast by hinging e leaf or plate to a base-piece, and in combining With the same a lever, carrying an incline plane, said incline acting as a Wedge to operate the leaf.

To enable others skilled in the .art to Ineke and use my invention, I will proceed to describe its construction and use.

In the drawings- A Figure 1 is a perspective view of my improved fast.

Figure 2 is e cross-section through the same.

. Figure 3 is an elevation ofthe seme.

In the drawings- D represents the sash of a Window, and

C the casing in which D slides.

. B is n iiat piece of metal niiixed to this casing.

A,t is aleen', hinged to B, Iend resting,r against the sash D.

E is n, lever, pivoted at h, iig. 2, having combined with it n segxneilt-wedge.

H is zt horn projecting from A, and resting upon the wedge-F.

From inspection of iig. l, it Will be seen that, if the lever E be brought down, the horn H will be thrown forward, and the leaf or plete A be consequently pressed hard against the sash D, thus holding it in position.'

IVhat I claim as my invention, and desire to secure by Letters Patent, is-

The segment-Wedge F, horn H, and lea-f A, operating in combination with the plate B, substantially as described and for the purpose set forth.

WILLIAM EDSON.Y

Witnesses:

FRANK G. PARKER, A. HUN BERRY. 

